In the cockpit of the Spirit of St. Louis
MLA
Lindbergh, Charles A. (Charles Augustus), 1902-1974. In the cockpit of the Spirit of St. Louis. Box 5, folder 2. 1927 May 13-20. https://collections.library.yale.edu/catalog/10011525.
APA, 6th edition
Lindbergh, Charles A. (Charles Augustus), 1902-1974. (["Box 5, folder 2"])(1927 May 13-20)[In the cockpit of the Spirit of St. Louis]. https://collections.library.yale.edu/catalog/10011525.